Home / 877,138.11-1,314,647.55-427,184.73

Finding the Fourth Proportional to 877,138.11, 1,314,647.55 and 427,184.73

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Solution

The fourth proportional to 877,138.11, 1,314,647.55 and 427,184.73 is: 640,261.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,138.11 : 1,314,647.55 = 427,184.73 : x
  2. Step 2: Convert to fraction form
    877,138.11/1,314,647.55 = 427,184.73/x
  3. Step 3: Cross multiply
    877,138.11x = 1,314,647.55 × 427,184.73
  4. Step 4: Simplify right side
    877,138.11x = 561,597,358,691.91
  5. Step 5: Solve for x
    x = 561,597,358,691.91/877,138.11
  6. Step 6: Final answer
    x = 640,261.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.